Talk to me plz:(

So I haven't started my period yet I was suppose to start today. I took a test yesterday ad it said negative it was the 82cent one tmi but my des charge is more whiteish color now and rlly slippery looking I been haveing rlly bad cramps and my boobs hurt so bad to where it hurts to even touch them or lay down. Idk what's going on plz help. I'm scared